John McCain through the years

In this Nov. 3, 2008, file photo, Republican presidential candidate Sen. John McCain, R-Ariz., speaks at a rally in Tampa, Fla.

In this June 24, 1992, file photo, Sen. John McCain, R-Ariz., holds up an article from the Washington Times during a hearing of the Senate Select Committee on POW/MIA Affairs on Capitol Hill in Washington.

In this Jan. 19, 2008, file photo, Cindy McCain, wife of Republican presidential hopeful Sen. John McCain, R-Ariz., uses a cheetah hand puppet to make her husband laugh as they ride the “Straight Talk Express” campaign bus to a polling station in Charleston, S.C.

Republican presidential nominee Sen. John McCain reacts to cheering supporters as he is welcomed at the Asociacion Borinquena de Florida Central in east Orlando for a campaign event on Sept. 15, 2008.

GOP presidential candidate Sen. John McCain leans through a window at the order counter at Parkesdale Farm Market roadside stand for some strawberry shortcake in Plant City, Fla., on Oct. 23, 2008, during a campaign stop on his bus tour across Florida.

President George W. Bush, left, is introduced by Sen. John McCain, R-Ariz., at the Pensacola Civic Center for a campaign rally Aug. 10, 2004, in Pensacola, Fla.

Sen. John McCain responds to supporters with wife Cindy during a “Joe the Plumber” rally at All Star Building Materials in Ormond Beach, Fla., on Oct. 23, 2008.

Republican presidential candidate John McCain greets supporters at a campaign event at the Albuquerque Convention Center in Albuquerque, N.M., on Sept. 6, 2008.

John McCain, Republican presidential nominee, acknowledges the audience at the end of the 2008 Republican National Convention at the Xcel Energy Center in St Paul, Minn., on Sept 4, 2008.

Republican presidential hopeful Sen. John McCain addresses a news conference in Beverly Hills, Calif., on May 28, 2008.

Sen. John McCain laughs as he and Sen. Chuck Schumer, D-N.Y., left, cross paths on Capitol Hill in Washington on May 6, 2013. With the announcement of McCain’s death, Senate Democratic Leader Schumer said in a statement he plans to introduce a resolution to rename a Senate office building after the war hero.

Republican presidential candidate Sen. John McCain, R-Ariz., waves to the crowd at a campaign rally in Woodbridge, Va., in October 2008.

Republican presidential candidate John McCain acknowledges the crowed as he goes on stage at the Republican National Convention in St. Paul, Minn., on Sept 4, 2008.

Republican presidential candidate John McCain, center, joins vice presidential candidate Sarah Palin, left, and her family following her speech at the Republican National Convention in St. Paul, Minn., on Sept. 3, 2008.

Confetti falls on Republican presidential hopeful Sen. John McCain, R-Ariz., and his wife, Cindy, at the end of their 114th New Hampshire town hall meeting with voters at the Peterborough Town House in Peterborough, N.H. on Jan. 20, 2000.

President-elect Barack Obama attends the Bipartisan Dinner honoring Sen. John McCain at the Hilton Washington in Washington, D.C., on Jan. 19, 2009.

Sen. Dick Durbin, D-Ill., hands a Chicago Blackhawks hockey puck to Sen. John McCain, R-Ariz., as they make a joint appearance at the City Club of Chicago’s Public Policy Breakfast held at Maggiano’s restaurant on Oct. 28, 2013. Durbin was giving McCain a hard time about having a Stanley Cup winner in Illinois and no champion in Arizona.

Sen. John McCain, R-Ariz., holds up his smartphone to show he is not playing poker as Sen. Rand Paul, R-Ky., sits nearby, before the Senate Foreign Relations Committee vote on a resolution on Syria on Capitol Hill on Sept. 4, 2013, in Washington, DC.

President-elect Barack Obama addresses the Bipartisan Dinner honoring Sen. John McCain at the Hilton Washington in Washington, D.C., on Jan. 19, 2009.

Republican presidential candidate Sen. John McCain and running mate Alaska Gov. Sarah Palin watch balloons drop after McCain’s speech on day four of the Republican National Convention at the Xcel Energy Center on Sept. 4, 2008.

Republican presidential candidate Sen. John McCain hugs his mother, Roberta, after accepting the nomination on day four of the Republican National Convention at the Xcel Energy Center on Sept. 4, 2008.

Sen. John McCain poses for a picture as he campaigns at a town hall meeting in Cedar Falls, Iowa, on March 16, 2007, during a two-day bus tour through the state.

Sen. John McCain on the “Straight Talk Express” bus between Ames and Iowa Falls, Iowa, on March 15, 2007, during a two-day bus tour through the state before heading to New Hampshire.

Sen. John McCain laughs while speaking with reporters on the “Straight Talk Express” bus between Ames and Iowa Falls, Iowa, on March 15, 2007.

Sen. John McCain at an outdoor town hall meeting near Charleston, S.C., on Feb. 9, 2000.

Dwarfed by an American flag, Sen. John McCain takes questions from the audience at a town hall meeting in Columbia, S.C., on Feb. 9, 2000.

Sen. John McCain answers questions at a town hall meeting today in Raymond, N.H., on Jan. 29, 2000.

Sen. John McCain greets supporters in Concord, N.H., after officially filing for the New Hampshire primary on Nov. 11, 1999.

Sen. John McCain speaks to a student assembly at Memorial High School in Manchester, N.H., on Nov. 17, 1999.

Sen. John McCain greets supporters following a Veterans Day breakfast in Laconia, N.H., on Nov. 17, 1999.

Sen. John McCain, R-Ariz., gets a kiss from his wife, Cindy, as they kick off his presidential campaign in Greenville, S.C.